installation.rst

Installation

SimpleMonitor is available via PyPi:

pip install simplemonitor

Tip

You may want to install it in a virtualenv, or you can use pipx which automatically manages virtualenvs for command-line tools.

Create the configuration files: monitor.ini and monitors.ini. See :ref:`Configuration`.

Warning

I know the configuration file names are dumb, sorry.

If you are using Debian 13 (Trixie) or newer, or Ubuntu 23.04 (Mantic Minotaur) or newer, SimpleMonitor is available in the official repositories and can be installed using:

sudo apt install simplemonitor

If using Debian/Ubuntu packages the configuration is in /etc/simplemonitor/ and SimpleMonitor can be managed via systemd:

sudo systemctl {restart,start,stop,status} simplemonitor

Running

Just run:

simplemonitor

SimpleMonitor does not fork. For best results, run it with a service management tool such as daemontools, supervisor, or systemd. You can find some sample configurations for this purpose on GitHub.

SimpleMonitor will look for its configuration files in the current working directory. You can specify a different configuration file using -f.

You can verify the configuration files syntax with -t.

By default, SimpleMonitor's output is limited to errors and other issues, and it emits a . character every two loops. Use -H to disable the latter, and -v, -d and -q (or -l) to control the former.

If you are using something like systemd or multilog which add their own timestamps to the start of the line, you may want --no-timestamps to avoid having unnecessary timestamps added.

Command Line Options Reference

General options

-h, --help	show help message and exit
--version	show version number and exit

Execution options

-p PIDFILE, --pidfile PIDFILE
	Write PID into this file
-N, --no-network
	Disable network listening socket (if enabled in config)
-f CONFIG, --config CONFIG
	configuration file (this is the main config; you also need monitors.ini (default filename)
-j THREADS, --threads THREADS
	number of threads to run for checking monitors (default is number of CPUs detected)

Output options

-v, --verbose	Alias for --log-level=info
-q, --quiet	Alias for --log-level=critical
-d, --debug	Alias for --log-level=debug
-H, --no-heartbeat
	Omit printing the . character when running checks
-l LOGLEVEL, --log-level LOGLEVEL
	Log level: critical, error, warn, info, debug
-C, --no-colour, --no-color
	Do not colourise log output
--no-timestamps
	Do not prefix log output with timestamps

Testing options

-t, --test

Test config and exit

These options are really for testing SimpleMonitor itself, and you probably don't need them.

-1, --one-shot	Run the monitors once only, without alerting. Require monitors without "fail" in the name to succeed. Exit zero or non-zero accordingly.
--loops LOOPS	Number of iterations to run before exiting
--dump-known-resources
	Print out loaded Monitor, Alerter and Logger types